公开(公告)号：US20160333500A1

公开(公告)日：2016-11-17

申请号：US15111688

申请日：2014-01-15

Applicant: DAICEL CORPORATION

Inventor： Shu SHIMAMOTO ,  Shizuka OKADA ,  Hiroki TANIGUCHI ,  Toshikazu NAKAMURA

IPC: D01F2/28 ,  D04H1/425 ,  D04H1/728 ,  D01D5/00

CPC classification number: D01F2/28 ,  D01D5/003 ,  D04H1/425 ,  D04H1/728 ,  D10B2201/28 ,  D10B2401/024 ,  D10B2401/12

Abstract: Provided are a cellulose acetate fiber and a cellulose acetate fiber molded article which are excellent in water solubility and biodegradability and are small in load onto the natural environment even when allowed to stand still in the environment. The invention provides a cellulose acetate fiber containing cellulose acetate having a total degree of acetyl substitution of 0.4 to 1.3 and a compositional distribution index (CDI) of 2.0 or less as well as a cellulose acetate fiber molded article.

Abstract translation: 本发明提供水溶性和生物降解性优异的乙酸纤维素纤维素和醋酸纤维素纤维成型体，即使在环境中静止的情况下也能够在自然环境中负载小。 本发明提供一种醋酸纤维素，其醋酸纤维素的总乙酰基取代度为0.4〜1.3，组成分布指数（CDI）为2.0以下，以及醋酸纤维素纤维成型体。

公开(公告)号：US20160317568A1

公开(公告)日：2016-11-03

申请号：US15106095

申请日：2014-03-24

Applicant: DAICEL CORPORATION

Inventor： Shu SHIMAMOTO ,  Toshikazu NAKAMURA ,  Shizuka UKITA ,  Tsuyoshi NAKAMURA ,  Ryoko YAMAUCHI ,  Hiroshi KOBAYASHI

IPC: A61K31/717 ,  A23L33/24 ,  A23K50/40 ,  A23K20/163 ,  A23K50/75

CPC classification number: A61K31/717 ,  A23K20/163 ,  A23K50/10 ,  A23K50/30 ,  A23K50/40 ,  A23K50/75 ,  A23L33/24 ,  A23V2002/00 ,  A61K45/06 ,  A61K2300/00

Abstract: A nutrient composition contains a cellulose acetate having a total degree of acetyl substitution of 0.4 to 1.1. The cellulose acetate may have a compositional distribution index (CDI) of 2.0 or less, where the CDI is specified by the formula: CDI=(Measured value of half height width of chemical composition)/(Theoretical value of half height width of chemical composition) where the measured value of half height width of chemical composition represents the half height width of chemical composition determined by HPLC analysis of a cellulose acetate propionate prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample); and the theoretical value of half height width of chemical composition=2.35482√{square root over (3*DPw*(DS/3)*(1−DS/3))}/DPw  [Math. 1] where DS is the total degree of acetyl substitution; and DPw is a weight-average degree of polymerization determined by a GPC-light scattering method using a cellulose acetate propionate prepared by propionylating all residual hydroxy groups of the cellulose acetate (sample).

Abstract translation: 其中DS是乙酰基取代的总量; DPw是通过使用通过丙酰化乙酸纤维素（样品）的所有残留羟基制备的丙酸纤维素的GPC-光散射法测定的重均聚合度。